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Serum Pregnancy Test
What is it?
Pregnancy causes the body to make the hormone human chorionic (kor-ee on ik) gonadotropin (go-nad-o-tro-pun). This hormone is commonly called HCG. A hormone is a special chemical your body makes to control how different parts of your body work.
Why do I need it?
Beta subunit is the part of HCG that is measured to confirm pregnancy. The level of HCG helps your caregiver know how far along the pregnancy is. It also helps to know how it is progressing. HCG levels that are higher or lower than expected give information for your care. Caregivers will explain the test and why you need it.
How do I get ready for the test?
Your caregiver will tell you when to have your blood test done. The blood test may be done before or after eating. You may need to stop taking some medicines before the test. Ask your caregiver if you should wait until after your blood is taken to take your normal medicines.
How is the specimen collected?
A caregiver will put a wide rubber strap around your arm and tighten it. Your skin will be cleaned with alcohol. A small needle attached to a special test tube will be put into a vein in your arm or hand. The tube has suction to pull the blood into it. When the tube is full, the rubber strap, needle and tube are removed. The caregiver will press a piece of cotton where the needle was removed. You may be asked to hold the cotton on the site for a few minutes to help stop the bleeding. Tape may then be put over the cotton on your arm.
What do I do after the test?
You may remove the tape and cotton in about 20 to 30 minutes. Call your caregiver to get the results of your test. Your caregiver will explain what your test results mean for you. Follow the instructions of your caregiver.
You have the right to help plan your care. To help with this plan, you must learn about your lab tests. You can then discuss the results with your caregivers. Work with them to decide what care may be used to treat you. You always have the right to refuse treatment.